Arsenal boss Mikel Arteta admits there's an injury scare for Lucas Torreira after their 1-1 draw at Crystal Palace.

He was replaced by Matteo Guendouzi after just 45 minutes at Selhurst Park.

"Matteo was really good when he came on as well, but Lucas has been in good form," said Arteta later.

"He's given us a lot but I had to get him off because he wasn't feeling good.

"It's a muscle injury. We'll have to assess it with the doctors tomorrow. We will know more the day after."